145869794 has 32 divisors (see below), whose sum is σ = 253566720. Its totient is φ = 61647552.

The previous prime is 145869781. The next prime is 145869827. The reversal of 145869794 is 497968541.

145869794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554507 + ... + 554769.

It is an arithmetic number, because the mean of its divisors is an integer number (7923960).

Almost surely, 2^145869794 is an apocalyptic number.

145869794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145869794 is a deficient number, since it is larger than the sum of its proper divisors (107696926).

145869794 is a wasteful number, since it uses less digits than its factorization.

145869794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

The product of its digits is 2177280, while the sum is 53.

The square root of 145869794 is about 12077.6568091663. The cubic root of 145869794 is about 526.4071625650.

The spelling of 145869794 in words is "one hundred forty-five million, eight hundred sixty-nine thousand, seven hundred ninety-four".